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Onyx Therapy UK is a private therapy business co-founded by Maddisyn English (Speech and Language Therapist) and Justine McDonnell (Occupational Therapist). They provide specialist multidisciplinary support with a neurodiversity-affirming approach, focusing on individual needs and holistic well-being
Onyx Therapy UK is committed to promoting neurodiversity and challenging societal misconceptions. Their core philosophy is to provide inclusive, personalised, and empathetic care, free from the burden of neurodivergence stigma. They value individual communication styles and identities, creating environments where differences are understood, respected, and empowered
The co-founders of Onyx Therapy UK are Maddisyn English, a Speech and Language Therapist, and Justine McDonnell, an Occupational Therapist and Clinical Lead
The team at Onyx Therapy UK includes Speech and Language Therapists, Occupational Therapists, a Client & Operations Coordinator, a social media manager, and a therapy assistant. They also collaborate with Clinical Psychologists for assessments
A neurodiversity-affirming approach, as practiced by Onyx Therapy UK, values and respects diverse neurological experiences. It focuses on understanding, valuing, and working with an individual's strengths, needs, and differences, rather than trying to
fix" them. This approach aims to empower individuals to thrive as their authentic selves
You can contact Onyx Therapy UK via email at admin@onyxtherapy.uk. For Speech and Language Therapy specific inquiries, email salt@onyxtherapy.uk. You can also call or text Speech and Language Therapy at 07832 665 865, and Occupational Therapy at 07471 350 873. There is also a contact form on their website.
Onyx Therapy UK offers a range of services including direct therapy, assessments, training, supervision, and consultancy services. They can also provide bespoke packages tailored to individual needs
Direct therapy sessions are provided to support a range of needs and can take place in various locations such as home, college, workplace, school, or in the community. Therapists and Therapy Assistants are highly trained to support development in areas like functional communication, self-advocacy, relationships, daily living skills, emotional regulation, and more
Onyx Therapy UK offers assessments for language, communication, and self-management needs. This includes standard Speech and Language Therapy (SALT) and Occupational Therapy (OT) assessments, as well as Sensory Integration (SI) assessments. They also conduct multidisciplinary autism assessments for all ages, following NICE guidelines and using DSM-5 criteria
Standard Speech and Language Therapy (SALT) and Occupational Therapy (OT) assessments start from £500. Sensory Integration (SI) assessments start from £600. The cost for EHCP assessment reports is not explicitly stated but they are described as highly comprehensive and time-consuming
We help you get another chance at life.
At Onyx Therapy we are passionate about helping others. We offer a range of services including direct therapy, assessment, training, supervision, and consultancy services. We are also able to offer bespoke packages if needed.
- Direct therapy
- SALT & OT Assessment
- Training
- Supervision
- Consultancy
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Frequently Asked Questions
You can choose whether to receive a full assessment report. If you opt not to have a report, you will receive a verbal summary of the assessment findings
Onyx Therapy UK provides tailored training to parents, school staff, workplaces, and young people on topics such as understanding autism, supporting language needs, using visuals, problem-solving, sensory processing, and self-regulation. Training can be half-day or full-day sessions
Half-day training sessions start from £400, and full-day training sessions start from £650. These prices are for a group of up to 12 people, with an additional charge of £25 per person for groups larger than 12.
Professional supervision is offered to Speech and Language Therapists (SALT) and Occupational Therapists (OT) to maintain high standards, foster growth, and enhance clinical skills. It involves reflective discussions, feedback, and guidance from supervisors.
Consultancy services provide comprehensive support at an organizational level. Experienced consultants offer tailored solutions, including assessments of current practices, intervention plan development, and staff training, to elevate the quality of care and support for clients.
Digital products can be purchased directly from the Onyx Therapy UK website on their Digital Products page.
Maddisyn English (Maddi) is a Speech and Language Therapist and co-founder of Onyx Therapy. She has extensive experience working with autistic and neurodivergent individuals and a passion for delivering neurodiversity-affirming training
Justine McDonnell is an Occupational Therapist, Clinical Lead, and Co-Founder of Onyx Therapy. She has over 10 years of experience supporting autistic and neurodivergent individuals and is passionate about moving away from deficit-based models
Catie is a therapy assistant with Onyx Therapy. She works face-to-face with clients in homes and schools and has lived experience of neurodiversity, as well as over 25 years of experience working with neurodiverse children and young people in school settings
Autism assessments are conducted by a multidisciplinary team, with at least three specialist practitioners involved in each assessment. This team includes Speech and Language Therapists, Occupational Therapists, and Clinical Psychologists
The autism assessments follow NICE guidelines and the NHS operational guidance for autism assessments. They use the DSM-5 criteria for diagnosis.
The ADOS-2 (Autism Diagnostic Observation Schedule, Second Edition) is one of the gold standard assessments used by Onyx Therapy UK for autism assessments. Suzanne, a Clinical Psychologist on the team, is trained to administer ADOS-2 modules 1-4
MIGDAS-2 (Monteiro Interview Guidelines for Diagnosing Autism Spectrum, Second Edition) is another assessment tool used by Onyx Therapy UK for autism diagnosis. Suzanne, a Clinical Psychologist, is trained in MIGDAS-2
In addition to autism-specific assessments, the team uses cognitive assessments such as WAIS-IV, WISC-V, and WPPSI-IV
The approach is person-centered, creating a safe, supportive, and non-judgmental assessment process where individuals feel comfortable to communicate authentically. The goal is to lead to meaningful understanding, practical recommendations, and improved access to support and accommodations
Yes, Onyx Therapy UK offers a range of digital products designed to empower learning, support growth, and celebrate neurodiversity. These include resources related to autistic burnout, the double empathy problem, emotions diaries, emotions wheels, monotropic thinking, neurodivergent experiences, PDA (Pathological Demand Avoidance), sensory processing, and various report templates